package com.atguigu.lease.web.app.custom.interceptor;

import com.atguigu.lease.common.context.LoginUser;
import com.atguigu.lease.common.context.LoginUserContext;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.web.app.controller.login.LoginController;
import com.atguigu.lease.web.app.vo.user.UserInfoVo;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;


@Component
public class AuthenticationInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("access_token");
        //判断有没有token 没有就显示未登录
        if (!StringUtils.hasText(token)){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_AUTH);
        }else {
            Claims claims = JwtUtil.parseToken(token);
            Long userId = claims.get("userId", Long.class);
            String username = claims.get("username", String.class);
            LoginUserContext.setLoginUser(new LoginUser(userId,username));
        }

        return true;
    }


    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        LoginUserContext.clear();
    }
}
